--- product_id: 244157962 title: "Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage" brand: "goberco" price: "VT123628" currency: VUV in_stock: true reviews_count: 5 category: "Goberco" url: https://www.desertcart.vu/products/244157962-under-deck-drainage-system-z-50-12-50-feet-long store_origin: VU region: Vanuatu --- # Designed for 12-inch joist spacing 50 feet roll length 30 mil industrial-grade thickness Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage **Brand:** goberco **Price:** VT123628 **Availability:** βœ… In Stock ## Summary > πŸ’§ Keep your deck dry, your space stylish, and your neighbors wondering how you did it! ## Quick Answers - **What is this?** Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage by goberco - **How much does it cost?** VT123628 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/244157962-under-deck-drainage-system-z-50-12-50-feet-long) ## Best For - goberco enthusiasts ## Why This Product - Trusted goberco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Simple, Fast Setup:** Self-sealing tape and screw-on downspouts make installation a breeze, even for DIY pros. - β€’ **Custom Fit for Precision:** 50-foot roll tailored for 12-inch joist spacingβ€”cut to size for a perfect fit every time. - β€’ **Cost-Effective Excellence:** High-performance drainage at just $1.5–$2 per square footβ€”save up to 70% compared to competitors. - β€’ **Effortless Dry Zone Creation:** Staple-on-top installation keeps your under-deck space dry and usable year-round. - β€’ **Industrial-Strength Waterproofing:** 30 mil thick black membrane ensures long-lasting protection against moisture intrusion. ## Overview The Under Deck Drainage System Z/50 is a 50-foot long, 30 mil thick waterproof membrane designed for 12-inch joist spacing. It installs easily on top of joists to create a dry, usable space beneath decks. Combining industrial-grade durability with cost-effective pricing, this system includes self-sealing tape and screw-on downspouts for efficient water evacuation, making it a smart choice for both contractors and DIY enthusiasts. ## Description International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Review: We are installing a replacement deck and wanted to keep the porch below dry so we looked for options. I found this system and am very happy with it. First, it will cost 1/3 of most other under deck drainage systems. Instead of $50 a rafter for parts, this will cost about 15 for a 10 foot deck. The price is for a 50 foot roll so you cut to fit from that. The system does not require an expensive collector at the end, simply cut an X into the material and screw on a downspout connector, I added some butyl tape for extra security and water proofing but that isn't really necessary. The material is a stiff plastic which has a drain down the center bent into the material. Staple in place with a drop down to the outlet end and bend the end upward into place, you are done. Great material and really fast shipping! It was shipped the next day from Canada and was at my place in 3 days from ordering. Good company, great shipping excellent product! Review: Product seems.to be very durable. I would recommend as a 2 person installation. It may have been that I am a homeowner installing this and not a contractor. In my opinion, the installation directions were alittle lacking and could be improved on, but as stated before, the product I'm happy with, and would recommend. ## Features - On-top of joists installation - keep framing and under deck area dry. - Industrial grade waterproofing membrane 30 mils thick black, each roll is 50' long, covering 50 s.f., for 12'' joist spacing. - Easy to install - 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes. - Material cost is between $ 1.5 - $ 2/s.f. ( goberco membrane is about $1.2/s.f., a good self sealing deck tape is about $0.4/s.f. , typical plastic gutter + down spout + roofing screws are low cost ). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JJP16VN | | Batteries Required? | No | | Batteries included? | No | | Colour | Black/White | | Customer Reviews | 3.8 3.8 out of 5 stars (47) | | Date First Available | 18 Oct. 2018 | | Item Weight | 4.67 kg | | Item model number | 1725503016 | | Manufacturer | Goberco Building Products | | Part Number | 20130003 | | Product Dimensions | 25.4 x 25.4 x 35.56 cm; 4.67 kg | | Size | 50' long roll-for 12'' joist spacing-30 mil lldpe | ## Images ![Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Image 1](https://m.media-amazon.com/images/I/61uJhIgIDAL.jpg) ![Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Image 2](https://m.media-amazon.com/images/I/81JaOcp5foL.jpg) ![Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Image 3](https://m.media-amazon.com/images/I/81-6B1m7hZL.jpg) ![Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Image 4](https://m.media-amazon.com/images/I/718jY3iyPWL.jpg) ![Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Image 5](https://m.media-amazon.com/images/I/51rApnaETsL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by G***Y on 25 July 2024* We are installing a replacement deck and wanted to keep the porch below dry so we looked for options. I found this system and am very happy with it. First, it will cost 1/3 of most other under deck drainage systems. Instead of $50 a rafter for parts, this will cost about 15 for a 10 foot deck. The price is for a 50 foot roll so you cut to fit from that. The system does not require an expensive collector at the end, simply cut an X into the material and screw on a downspout connector, I added some butyl tape for extra security and water proofing but that isn't really necessary. The material is a stiff plastic which has a drain down the center bent into the material. Staple in place with a drop down to the outlet end and bend the end upward into place, you are done. Great material and really fast shipping! It was shipped the next day from Canada and was at my place in 3 days from ordering. Good company, great shipping excellent product! ### ⭐⭐⭐⭐ Review *by J***. on 26 December 2019* Product seems.to be very durable. I would recommend as a 2 person installation. It may have been that I am a homeowner installing this and not a contractor. In my opinion, the installation directions were alittle lacking and could be improved on, but as stated before, the product I'm happy with, and would recommend. ### ⭐⭐⭐⭐⭐ Review *by T***R on 15 October 2022* Definitely use 4” tape (BLACK). Use longest staples your gun will staple. Cannot use compressed air stapler in my experience. Will significantly warp and twist in high temps during install. Try to have done in one day. On long runs (I did 16’) maybe not the best product. Mine is pooling in the middle. I cannot imagine running a 16’ elevated deck at a 2 degree downslope which would put constant tension on the house rim joist. Make sure to use lateral bracing if so. I’m no engineer, but… ## Frequently Bought Together - Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Under Deck Drainage System -Z/50/16-50 feet Long Roll, for 16 inches Joist Spacing, 30 Mil Thick Trough, top Side Black + Down Side White. - E-SDS Joist Tape for Decking,1 5/8" X 50'*10 Roll Butyl Tape Deck Joist Flashing Tape Anticorrosive Waterproof Deck Tape --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/244157962-under-deck-drainage-system-z-50-12-50-feet-long](https://www.desertcart.vu/products/244157962-under-deck-drainage-system-z-50-12-50-feet-long) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-13*